Spring roller



E. HAYSLETT SPRING ROLLER Filed Aug. 15. 1921 Patented `luly 8, 1924.

EDGAR HAYSLETT, OF SOUTH BEND, INDIANA.

SPRING ROLLER.

Application filed August 15, 1921. Serial No. 492,411.

To all 207mm t may concern: ,A

Be it known that I, EDGAR HAYsLETT, a citizen of the United States, residing in the city of South Bend, county of St. Joseph, Indiana, have invented certain new and use ful Improvements in Spring Rollers, of which the following is a specification. j

This invention relates to Vshade rollers, and especially to ratchet and spring devices therefor. j Y

An object of my invention is to provide a novel and improved spring and ratchet device fora shade roller which may be applied to the end of a solid wood roller, or the like. Y

Another object of the invention is the provision of novelball ratchet means for a shaderoller. A third object of the invention is the provision of improved means for anchoring the inner and outer ends of the spring member. Still another object of the invention is the provision of improved means for 4inserting and retaining the ratchetballs of the ratchet mechanism. Other objects of the invention are mentioned v and described herein.

The preferred embodiment of my invention lis illustrated in the accompanying` drawing" in which Figure 1 is an elevation of a shade roller to which' my invention is applied; Fig. 2 isfa section taken on the line 22 of Fig. l; Fig. 3 is a section taken j on the line 3 3 of Fig. v2; Fig. 4 is a view showing'the ratchet cage cap; Fig. 5 is a view showing the roller ratchet shaft; Fig. 6 is a side elevationrof a modified form of the locking plate for the ratchet mechanism;

andFig. 7 is a section taken on the line '7--7` ofFig. 2. v

Similar numerals of reference indicate likeinembers throughout the several views Y. on'Y the drawing.

VReferring to the accompanying drawing in detail, the numeral 1 indicates a cylindrical cup-like spring casing member, preferably formed of ductile metal, which is provided with the hollow cylindrical roller socket portion 2 adapted to carry the shade roller end 3 therein, which socket portion is reduced in diameter for that purpose. The casing 1 may be provided with a cuplike head 4 the flange whereof sleeves the former, said head being centrally apertured at 5, for the purpose hereinafter described.

The general structure of the spring casing contemplates and effects a spring chamber 6 and a ratchet chamber 7, the latter being adapted to contain the ratchet cage and mechanism hereinafter described. Substantially, the ratchet cage comprises the disk 8, disposed adjacent the end of the roller 3, theannular locking plate 9, and the cupped head member 10, the latter of which may have an annular flange on its outer periphery and within which the locking plate 9 is arranged. The ratchet cage described is rigidly fixed within the casing socket 2, as a unit, and rotates therewith.

4Numerals 11, 12 and 13 indicate apertures formed centrally of the members 8, 9` and 10, respectively, and axially of each other and of the casing head aperture 5. The locking plate 9 may be providedvwith a plurality of ball chambers 14, 14 disposed on opposite sides of the central aperture l2 and in communication therewith, each of said chambers having a lateral ball chamber or recess 15 formed intermediate the radial extremities of the chamber 14 and in communication with the bore 12, said lateral ball chambers being adapted to serve as locking chambers, as hereinafter described. Numeral 16 indicates a stub shaft having an annular reduced portion 17 loosely engaging in the central apertures 1l, 12 and 13, respectively, of the members 8, 9 and 10, respectively, and a portion 18 disposed in the aperture 5 and the casing head 4, within which apertures said stub shaft gains its bearings. The shaft 16 is provided also with a flattened end portion 19 adapted, as is well known, to engage in a bracket-not shown-to confine said shaft against rotation. The numeral 2O indicates a slit or incision formed longitudinally of and in the stub shaft 16 and terminating adjacent the shaft portion 18. Numeral 22 indicates a coil-spring disposed within the casing chamber 6, the inner end whereof is bent for arrangement within the shaft slit 20, for anchorage therein, land the outer end thereof is hooked at 23 and projected through the aperture 24 formed in the casing l, said hook being overlaid by a bulged portion 25 of the iiange of the casing head 4. A locking ball 26 is movabiy disposed in each of the chambers 14, each of which balls has a range of movement from the outer extremity of said chamber to and within the locking chamber 15, in which latter position the ball projects slightly into the slit 20 of the stub shaft to effect the locked relation between the ratchet cage and Vsaid shaft.' See Figz. i.

Itis important in this invention to be able to introduce,'or assemble, the balls 26 in the chambers 14, subsequent to Vinserting the shaft 16 in the bearing apertures 11, 12 and 13, and this is accomplished b-y Vpunching or stamping the apertures 27, 27 in the head member 10, introducing the balls 26 into the chambers 14, and thereafter folding or pressingrthe ragged edges of the Vhole 27 back flush with the face'of the head 10, thereby closing said apertures, as indicated by numeral 27' in' Fig. 4 ofthe. drawing;

VIn the modification shown in F ig. 6 of the drawing the ball chamber 14 is provided whereupon one of the balls 26 will roll into Y a recess 15 of the locking plate 9, thereby held* in Ytension Vand the roller confinedV Y disposing a portion of the ball within the slit 2Ol of the port-ion 17 of said stub shaft. The Veffect 'of this movement of the detent ball'QG. is -that the coil springiQQ will be i against retrograde rotation.Y In that respect the effectV is similar to that produced by the .Y well knownpivoted pawls or dogs employed in the shade rollers now in common use.

. I claimz- 1. In a devicepof the'character described,

`acasing provided with a reduced roller socket portion; a ratchet Ycage rigidly arranged within said casing socket portion, said cage comprising a centrally apertured locking plate provided with a plurality of chambers adapted lto contain movable de-Y tent members, and a pair of cheek plates disposed on'op-posite sides of said locking,

plate, said cheek plates being centrally aperturedaxiallyof the Vcentral aperture in said locking plate; a stub'shaft arranged Vin said locking cagereentral` aperture; and a coil s rin'fr'within said casino` and havin@r its C C D innerand outer ends connected, respectively,

withsaid stub shaft and said casing.

'2. A device of the character described shade roller, said casing having a centrally disposedV aperture in the end thereof; ra-

diallyextending and oppositely disposedre- Y cesses formed in the side Walls of said casing central aperture, said recesses being lprovided with lateral closure means, the side walls of said'casingl central opening'rbeing formed withoppositely disposedfand off-set recesses inwardly of the first .named rrecesses;YA aV spring coiledV within said' casing and having one endthereof anchored within the casing; a stub shaft disposed in the casingcentral'opening and having a longitudinal slit therein, the 'inner' endfof said spring being anchored within saidslit, that portion of saidstub shaftV which is ,arranged within said central opening having opposite recesses arrangedfor cooperation withY the last named recesses for the reception of detent-Vmembers normallylocated withinthe l first named recesses and movable'therein.

3. 'A springV winding device for a shade; Y.

roller comprising Va-casingprovided with a tubular extension adapted to receive Vone end of a shade roller; a casing head fprovided with a centrally arranged aperture;

a locking plate rigidly arranged within said 'Y casing extension portion Vand movable there'- with, said locking plate being centrally apertured and provided withpafpalir of'ra-Y dially arranged andoppositely disposed Y,

ball* chambers lwhich open into said central i aperture, the side walls of said central aper!` ture being formed with oppositely disposed and oifj-set ball recesses at the inner exV Y tremity'of said ball`V chambers; a spring coiled withinsaid casingand having its,

outer end anchored in *thecasin'gzigA wall; va' stub shaftdisposed in lsaid:casing head and locking 'plate central apertures, said shaftY having a longitudinal slit therein in YwhichV the inner end of said sp-ring is an'choired;Y and ,said stub shaft having opposedrecesses adaptedto cooperate `with :said last'named recesses in said locking plate for the Vreception ofdetent'ballsl normally located and movable within nthefirst named recesses.

5 In testimony whereof-I'have'hereunto'afi i fixed my signaturethis 11thV clay of August', 

